Frost Report

All states Minnesota

Frost dates for Kabetogama, MN

When the last spring frost and first fall frost usually come, and when to plant, from 30 years of NOAA weather records.

Last spring frost

May 28

typical year

Safe to plant

June 12

frost is over in 9 of 10 years

First fall frost

September 16

typical year

Growing season

111 days

frost-free, typical year

When to plant

Counted from this page's frost dates. Warm-season crops wait for the safe-to-plant date.

CropStart indoorsPlant outsideFall planting
Cool-season crops
Peas – Apr 30 – May 14 –
Spinach – Apr 16 – May 7 Jul 22 – Aug 5
Lettuce – Apr 30 – May 21 Jul 22 – Aug 5
Radishes – Apr 30 – Jun 11 Aug 5 – 19
Onions – Apr 30 – May 14 –
Potatoes – May 7 – 21 –
Carrots – May 7 – 28 Jun 24 – Jul 8
Beets – Apr 30 – May 14 Jul 8 – 22
Kale Mar 19 – Apr 2 Apr 30 – May 14 Jul 8 – 22
Broccoli Mar 19 – Apr 2 May 14 – 28 Jul 8 – 22
Cabbage Mar 5 – 19 Apr 30 – May 14 Jul 8 – 22
Garlic – – Aug 5 – 26
Warm-season crops
Tomatoes Apr 17 – May 1 Jun 12 – 26 –
Peppers Apr 10 – 24 Jun 19 – Jul 3 –
Cucumbers – Jun 12 – Jul 3 –
Zucchini – Jun 12 – Jul 10 –
Pumpkins Season usually too short. Try a quick variety or row covers.
Green beans – Jun 12 – Jul 8 –
Sweet corn – Jun 12 – Jul 10 –
Basil May 8 – 22 Jun 19 – 26 –

Onions: from sets. Green beans: until 10 weeks before the first fall frost. Garlic: harvest next summer.

The year at a glance

Start indoors Plant outside Fall planting

The chance of frost, by date

1 year in 10Half of years9 years in 10
Spring frost after June 12May 28May 13
Fall frost before September 1September 16October 2

Frost here means 32°F or colder. Read across: in 1 year in 10, spring frost carries on past the first date, which is why that date is the safe-to-plant date.

Hard freeze (28°F)

A hard freeze kills most garden plants, even hardy ones. The last one in spring usually comes around May 16 (May 31 in a late year), and the first one in fall around September 29.

Where these dates come from

NOAA weather station KABETOGAMA, MN US (USC00214191), 1991–2020 climate normals. It's the nearest station for 2 zip codes, all within 10 miles:

56649, 56669

Planting dates follow common university extension advice; your local extension service can fine-tune them for your soil and microclimate.